As the global rail transit industry moves toward higher safety standards and better adaptability to extreme climates, phenyl silicone rubber is emerging as a key material for electrical insulation and component encapsulation. Its excellent flexibility at low temperatures and resistance to thermal aging make it especially suitable for demanding rail environments.

In several intercity railway projects across cold regions, phenyl silicone rubber is now widely used in cable sheathing, sealing rings, and vibration-damping pads. These components not only enhance durability and reduce maintenance costs but also help maintain reliable performance under high-speed operation and temperature fluctuations.

Experts note that with advances in polymer formulation, the next generation of phenyl silicone rubbers will offer even better processability, resilience, and environmental adaptability—positioning it as a core silicone material in future rail applications.